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Oggz vs opus-tools: catalog facts
Oggz	opus-tools
Free Free software; source tarballs and Linux packages are available from the project.	Free Free and open source.
Command line	Windows, Command line
Validates Ogg framing and reports contained codecs Can extract, merge, sort, and trim Ogg streams	Encode, inspect and decode Opus in one toolset Easy to script for batch conversion
Depends on libogg.	Command-line only, with no graphical interface Handles Opus files only
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License: BSD-2-Clause AND GPL-2.0-only
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.